Onchocerca sp. in an imported Zangersheide gelding causing suspensory ligament desmitis

A 5‐year‐old imported Zangersheide gelding was evaluated for SC swellings over both forelimbs and lameness localized to the distal metacarpus. Ultrasound examination of the SC masses was compatible with verminous granulomas. Linear hyperechoic foci were present within the suspensory ligament branche...

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Vydáno v:	Journal of veterinary internal medicine Ročník 37; číslo 2; s. 735 - 739
Hlavní autoři:	Brown, Kara A., Johnson, Amy L., Bender, Susan J., Nolan, Thomas J., Pfisterer, Bianca, Slack, JoAnn, Willis, Elinor, Rule, Emily K.
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	Hoboken, USA John Wiley & Sons, Inc 01.03.2023 Wiley
Témata:	Animals Arthritis - veterinary Biopsy Case Report dexamethasone EQUINE granuloma Granulomas Horse Diseases - diagnostic imaging Horse Diseases - drug therapy Horses infectious Infectious diseases ivermectin lameness Ligaments Ligaments - pathology Male metacarpus Muscular Diseases - pathology Muscular Diseases - veterinary necropsy Onchocerca onchocerciasis Onchocerciasis - diagnosis Onchocerciasis - parasitology Onchocerciasis - pathology Onchocerciasis - veterinary parasite ultrasonics ultrasound veterinary medicine Warmblood United States > US infectious parasite ultrasound Warmblood
ISSN:	0891-6640, 1939-1676, 1939-1676
On-line přístup:	Získat plný text
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Popis
Shrnutí:	A 5‐year‐old imported Zangersheide gelding was evaluated for SC swellings over both forelimbs and lameness localized to the distal metacarpus. Ultrasound examination of the SC masses was compatible with verminous granulomas. Linear hyperechoic foci were present within the suspensory ligament branches of both forelimbs, suggestive of ligamentous parasitic infiltrates. A diagnosis of onchocerciasis was confirmed on biopsy of a SC mass. The gelding was treated with ivermectin and a tapering course of PO dexamethasone but was eventually euthanized. Necropsy confirmed the presence of SC eosinophilic granulomas and degenerative suspensory ligament desmitis, both with intralesional nematodes. Given the location and appearance of the nematode, a diagnosis of Onchocerca sp., most likely O. reticulata, was made. Onchocerciasis should be included as a differential diagnosis for multifocal suspensory ligament desmitis with these sonographic characteristics when paired with SC masses in imported European Warmbloods.
Bibliografie:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 ObjectType-Case Study-2 ObjectType-Feature-4 content type line 23 ObjectType-Report-1 ObjectType-Article-3
ISSN:	0891-6640 1939-1676 1939-1676
DOI:	10.1111/jvim.16653